AIR RAID PRECAUTIONS SIGNAL BOX
- A brick built railway signal box, usually with a reinforced correct roof, designed to minimize the effects of blast damage from aerial bombardment and thus protect the signalling equipment.
- English Heritage
- http://creativecommons.org/licenses/by/3.0 (FISH Thesaurus of Monument Types)
- http://www.english-heritage.org.uk (FISH Thesaurus of Monument Types)
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